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LibGUI: Some more convenience functions for constructing widgets

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This patch adds two new API's:

- WidgetType& GUI::Window::set_main_widget<WidgetType>();

  This creates a new main widget for a window, assigns it, and returns
  it to you as a WidgetType&.

- LayoutType& GUI::Widget::set_layout<LayoutType>();

  Same basic idea, creates a new layout, assigns it, and returns it to
  you as a LayoutType&.
This commit is contained in:
Andreas Kling 2020-03-03 21:42:48 +01:00
parent 0cafbbf09c
commit 03e0ddce52
10 changed files with 66 additions and 60 deletions
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15
Demos/HelloWorld/main.cpp
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@ -39,17 +39,16 @@ int main(int argc, char** argv)
window->set_rect(100, 100, 240, 160);
window->set_title("Hello World!");
auto main_widget = GUI::Widget::construct();
window->set_main_widget(main_widget);
main_widget->set_fill_with_background_color(true);
main_widget->set_background_color(Color::White);
main_widget->set_layout(make<GUI::VerticalBoxLayout>());
main_widget->layout()->set_margins({ 4, 4, 4, 4 });
auto& main_widget = window->set_main_widget<GUI::Widget>();
main_widget.set_fill_with_background_color(true);
main_widget.set_background_color(Color::White);
auto& layout = main_widget.set_layout<GUI::VerticalBoxLayout>();
layout.set_margins({ 4, 4, 4, 4 });
auto label = main_widget->add<GUI::Label>();
auto label = main_widget.add<GUI::Label>();
label->set_text("Hello\nWorld!");
auto button = main_widget->add<GUI::Button>();
auto button = main_widget.add<GUI::Button>();
button->set_text("Good-bye");
button->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
button->set_preferred_size(0, 20);